Lamp fixture with adjustable lamp socket

Abstract

A novel electrical lamp fixture of the type having a lamp housing, a housing axis, a housing sidewall co-axial with the housing axis and a lamp receiving socket supported interiorly of the housing by a housing support means is disclosed and is also of the type which has an exterior support for the housing and which is pivotally connected to the housing. By extending this pivot connection through an elongate slot provided in the co-axial sidewall of the housing, it is possible to adjust the relative angular positioning of the housing to its support and simultaneously adjust the location of the lamp receiving socket along a length of the housing axis in a one-step operation. Locating the lamp receiving socket in different axial positions within the housing is desired when light bulbs of different axial lengths are employed in the same lamp receiving housing.

I claim: 
     
       1. An electrical lamp fixture of the type having an elongate lamp receiving housing of unitary fixed length and which is open at one of its ends and closed at its other end, a housing axis, a housing sidewall at least a portion of which is coaxial with said housing axis, a lamp receiving socket located entirely within said lamp receiving housing, socket support means interior of said lamp receiving housing for maintaining said lamp receiving socket in alignment with said housing axis, housing support means exterior of said lamp receiving housing, and connector means for pivotally connecting said housing support means to said sidewall portion of said lamp receiving housing in selected angular relationship, said fixture being further characterized by an elongate slot provided in said portion of said housing sidewall and by said connector means which extends through said elongate slot so as to interconnect said socket support means to said housing support means and which is constrained to slidingly move to selected positions along said elongate slot and to thereby cause corresponding movement of said lamp receiving socket along a length of said housing axis interior of said lamp receiving housing. 
     
     
       2. The electrical light fixture as claimed in claim 1 wherein said elongate slot extends in a direction substantially parallel to said housing axis and said socket support means is constrained to slidingly move along said elongate slot by guide means which extends into said elongate slot. 
     
     
       3. The electrical light fixture as claimed in claim 2 wherein said lamp receiving socket, said socket support means, said housing support means and said connector means are slidingly movable along said slot relative to said lamp receiving housing. 
     
     
       4. The electrical light fixture as claimed in claim 3 wherein said lamp receiving housing, said lamp receiving socket and said socket support means pivot relative to said housing support means about said connector means. 
     
     
       5. The electrical light fixture as claimed in claim 4 wherein said connector means for pivotally connecting said housing support means to said sidewall portion of said lamp receiving housing and for connecting said socket support means to said housing support means, holds said socket support means, said lamp receiving housing and said housing support means together in frictional engagement. 
     
     
       6. The electrical light fixture as claimed in claim 4 which further includes a plurality of notches arranged in series along one side of said elongate slot for locating said connector means at a fixed position along said elongate slot when positioned in one of said notches. 
     
     
       7. The electrical light fixture as claimed in claim 4 wherein said connector means comprises a thumb screw which at one end extends through an aperture in said housing support means and which at its other end is threadedly connected to a complimentary threaded opening in said socket support means. 
     
     
       8. The electrical light fixture as claimed in claim 1 wherein said connector means includes means for maintaining said lamp receiving housing, said lamp receiving socket, said socket support means and said housing support means in a selected fixed relative relationship. 
     
     
       9. The electrical lamp fixture as claimed in claim 1 wherein said housing support means is attached to a base plate at an end of said housing support means remote from said lamp receiving housing.